Cloth-board made of pulp material.



' W. T. WILSON.

CLOTH BOARD MADE OF PULP MATERIAL.

APPLICATION FILED NOV. 6, 1913.

1,1 12,957. Patented Oct. 6, 1914.

pulp is conveniently had To all whom it mag concern: I Be it known that I, WILSON, a

EDSTATESPATENT OFFIC WYLE r: wInsoN, or PHILADELPHIA, PENNSYLVANIA.

citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and usefulImprovements in Cloth-l3oards Made of Pulp Material; and I do hereby declare the following to be a full,

clear, and exact description of the inven:

tion, such as will enable others skilled in the art to which it appertainsfto make and use the same. i l J Thi invention relates to boards especially adapted for the wrapping of cloth and other fabrics thereon, and has for its object to pro duce aboard of this character from pressed paper or other pulp which. will be light in weight, and yet sufficientlylstrong and rigid to withstand the strains to which it would ordinarily be subjected, andalso to provide such board with roundedor cushioned edges to prevent injuring the fabric when dropped against sharp edges or other obstructions. With these and other objects in view, the invention consistsinthe novel details of construction hereinafter more fully described and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of this specification, in which like nunierals designate like parts in all the views :Figure 1 is a perspective view; of a boardconstructed in accordance with this invention; Fig. 2 is a cross. sectional view taken on, theline 2-2 of Fig.1; Fig. 3 is a board provided with cushioned edges; and,

. Figs. 4, 5, 6, 7 and 8 are planviews showing; modified arrangements of the strengthening I to these said members; the parallel members sectional viewof. a modified form of my ribs with which my board isprovided.

a 1' 1 indicates the body ofiny board, which may be made of any suitable material, but preferably of pressed 1 paper pulp, This by grinding waste paper and other scrap material foundin factories employing large quantities of paper,

and after the same is ground, Ipreferably unite the same with a suitable binder, such as a liquid containing a glueyor cement-like substance, and in some cases, I may add a filler thereto in order to give body and strength to the board. A convenient filler for some cases is found inplaster of Paris.

In other cases, a filler havingPortland cement as a base is found to be efficient. In other cases, the glue itself is found sufli- Giant and e pe ially h n h b ard i sub .CLTOTH-BOARD .MADE or run)? .MA'IERIAL.

in the drawings.

bers are preferably solocated as to forman i the web portion 5 and Crossing the members .8 and 9 are'thesimilar zigzag. members 10 and 11, likewise in-, l tcgral with the web) portion 5, and this" p ifi a n r ent x Parameter 6,1914; Application filed November 6,1913. ,Seria1No. 799,538. 1 1

h In orderthattheboardshall be as light as. 1

possible, consistent with suflicient strength, I provide the body of the same with a plurality of strengthening members as shown These strengtheningmema integral bracing structure. That is to say,

in Fig. l, for example, the member 3 extends I through the center of the board from endlto,

end, and the member. 4: crosses the same at right angles, so that the two members effectually bracethe board while the web portion further stiffens it. In order tofurther strengthen andstifi'en the board, and yet not have it too heavy in the form shown in Fig. 1, I run the diagonal braces 6 and 7 across the web portion 5, and the whole furnishes an excedingly strong, stiff and light 1 board.

In the form shown in Fig. 4, the parallel.

zigzag bracing members 8 and 9 run from side to side of the board, being integral with structure also results in a stiff and strong so separated as shown.

board of suflicientwlightness to makethe f same practical.

i In the form shown in Fig. 5,the diagofi l parallel members 12 and 13 are integral with the edges ofrthe boardand with the .web

portion They are crossed by similar 1 diagonal members 1a and 15 which are likewise integral with thededgefmembers of the board ,and the web portion 5. In addition 16 and. 17 cross from edge to edge of the board through its center and are integrally; united with the above mentioned bracing members.- These members alone serve to stiffen and strengthen the board as inthe cases above, while the additional members lSand 19at eachend connected bythe par allel members 20 and 21 further add stiff- 11 ness and strength to the board, Thediag l onal member12 is braced by the parallel members 22and 23, and the diagonal mem ber13 is braced by the parallel members 24 and 25. The diagonal member 15 is braced I by the parallel members26 and 27,3 and the e i diagonal member 14 is braced by the paral l el members28and 29. I In the form sh wn in Fig- 6, t e e tral member 30 crosses from side to side of the board,wh1le the longitudinal central member 3l stops short of the end edges and meets said members are. inte ral with the ed e illustrated.

the side edges oi the board.

memberot, while the web member is omitted, or provided with holes as shown.

In the form shown inFi 8, two diagonal members L0 and d1 cross the web portion 5 at the center, and the central member 42 crosses said web portion from side to side of the board, as shown. The members 40 and 41 are further braced by the circular members which are integral with said members d0 and i1 and also with the side edges. of the board, as shown. The said members 4.3 are further provided with the diametrical bracing members 44L and 45, as a In addition to the above, the said members 10 and d1, as well as the central member 42, are braced by the circular members 46 which are integral with the said members 40, ll and 42, as well as with The said circular members 46 are further braced by the diametrically extending members d7, as will be clear from the drawings.

' In the modified form ofstructure shown in Fig. 3, the body 50 of the board is made of pulp or multiple layers of pulp material which may be bound ortastened together byany suitable means, forming a board of .characteristics as those the same general In addition to this, the

above described.

central layers of pulp are extended at the edge as indicated at 51 and passing over the whole body portion .is a piece of straw board or paper 52. constituting cushioned edges 53 firmly braced by the projecting edges 51 of the central layers.

"In all of the forms disclosed, the extreme end and side edges 5dof the boards are curved or rounded, as shown, so that ifthe cloth, lace, silk or other delicate fabric which is ordinarily wrapped around these boards is dropped on a sharp corner, the said fabric will not be injured. The soft nature of the pulp greatly aids in this result. It will also be observed that in all of the forms, the bracing ribs have been so disposed as to give a maximum strength with a minimum lightness. It is obvious, however that those skilled in the art may vary the disposition of the ribs and other features of this invention without departing from the spirit thereof, and therefore I do not wish to be limited to the above disclosure except as maybe required by the claims.

What I claim is 1. A. cloth board of pulp material comprising a web member; a rounded edge member; and a plurality of bracing members integral with said web and edge members, substantially as described.

2. A cloth board of pulp material comprising a web member; a plurality of rounded edge members integral with said web member; and bracing members ex tending from side to side and from end to end of said board integral with said web .and edge members, substantially as described.

3. A. cloth board of pulp material comprising web member; rounded edge memhere on the sides and ends of said board integral with said web member; a plurality of bracing members crossing each other at he center of said board extending from'end to end and from side to side of said board and integral with said side and end members and said web member; and additional bracing members integral with said first named bracing members and with said edge and web members, substantially as described.

4. A cloth board formed of layers of pulp material provided with a web member; a rounded edge and with bracing members associated with said web member, substan- VVYLE T.WILSON.

Witnesses:

BLANOHE lvV. BRYAN,

MARY MoIN'rYRn.

Copies of this patent may be obtained for five cents each, by addressing the Washington, D. G.

Commissionerof Patents, 

